Home / 328,924.56-491,006.76-289,067.52

Finding the Fourth Proportional to 328,924.56, 491,006.76 and 289,067.52

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Solution

The fourth proportional to 328,924.56, 491,006.76 and 289,067.52 is: 431,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,924.56 : 491,006.76 = 289,067.52 : x
  2. Step 2: Convert to fraction form
    328,924.56/491,006.76 = 289,067.52/x
  3. Step 3: Cross multiply
    328,924.56x = 491,006.76 × 289,067.52
  4. Step 4: Simplify right side
    328,924.56x = 141,934,106,416.44
  5. Step 5: Solve for x
    x = 141,934,106,416.44/328,924.56
  6. Step 6: Final answer
    x = 431,509.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.